Hubei Raiseway Technology Co., Ltd.

Hubei Raiseway Technology Co., Ltd. Wholesale and retail customization of industrial products (international and Chinese brands)

13/08/2026

A pickling line is a key pretreatment facility in cold rolling production in the steel industry. Its function is to remove the iron oxide scale on the surface of hot-rolled steel coils by using acid solutions, providing high-quality surface strips for subsequent processes such as cold rolling and galvanizing.
A complete pickling line consists of three main sections: entry section, process section and exit section. The entry section includes uncoiler, leveler, crop shear and welder; its function is to uncoil the hot-rolled coil, level the strip, cut its head and tail, and weld strips together to ensure continuous processing. The process section places the strip inside enclosed pickling tanks, the circulating system heats HCl (or sulfuric acid or mixed acids) to the specific concentrations and temperatures, and sprayed onto and used to immerse the strip. Through both chemical reaction and mechanical action, the iron oxide scale is removed. Then, the strip enters the rinsing tanks and drying units to remove any residual acid and ensure a dry surface. The exit section completes edge trimming, oiling, recoiling and dividing coils, ultimately producing pickled coil that meet quality requirements.
The 3D animation of pickling line presents the technology based on actual 1:1 equipment components. Its advanced automatic control system precisely regulates acid concentration and temperature, strip tension and operating speed, enabling stable and efficient operation. This not only improves the surface quality of cold-rolled products but also reduces production costs. Also, it supports energy saving, reduced consumption and environmental protection, and can be equipped with waste acid regeneration and wastewater treatment systems to meet environmental standards.
line pickling line components

13/08/2026

Recently, we have delivered a batch of rubber sleeves of recoiler to our customers overseas by air or via the China-Europe Railway Express. Rubber sleeves are widely used as coiling equipment in cold-rolled strip production lines. They are characterized by an ultra-high friction coefficient, excellent resilience, durable performance, shock absorption, and resistance to corrosion from medium. Application of the rubber sleeve can effectively prevent strip from slipping while being coiled at high speed, and ensure stable running speed of the whole production line.
We offer diversified shapes of rubber sleeves of various materials, such as PU, NBR, NR, and others. We also provide tailor-made products according to customer requirements on material, dimension, wall thickness, hardness, and outer surface texture of the sleeve to meet the specific needs of different equipment. Our product quality is comparable to that of European and American products, with dimension and texture fully compatible with them for direct replacement.
sleeve of recoiler mill spare part rubber product

06/08/2026

In late June, representatives from Pakistan Hadeed Ltd visited our company, and inspected the cold rolling production line equipment and production conditions, and held in-depth discussions regarding the purchase of rolling mill and other equipment, project implementation, and long-term strategic cooperation.
With a tight schedule, the delegation, accompanied by company leaders, visited factories in Wuhan, Jiangsu, Shandong, Guizhou and Huangshi to inspect cold rolling mills, tendem rolling mill, galvanizing lines, tension leveling lines, grinding machines, rolling rolls, hydrogen production plant and other equipment. They inquired in detail about production processes, technical parameters, production capacity and efficiency, automatical control system, equipment quality and energy-saving.
Client Inspection Rolling Production Line Cooperation

04/08/2026

As a tension control device used in continuous production line, the three-roll bridle roll set is very popular in metallurgy, papermaking, textiles, and other industries, and functions for establishing, adjusting, and stabilizing strip tension as well as eliminating sagging and off-track of the strip during uncoiling and coiling to improve strip flatness, prevent strip breakage, and ensure continuous operation and high yield of the line.
The device consists of stand, three bridle rolls and drive system, and the three bridle rolls are arranged in parallel, two fixed with the middle one movable via a hydraulic cylinder to adjust the wrap angle of the strip by rapid lifting and lowering. A carryover plate can be designed at the lower part of the middle roll to facilitate threading. Tension is controlled through the output torque of the motor, where variable-frequency motor is used to drive each roll through reducers and universal spindles to change the friction on the roll surface, creating a differential tension between the units before and after the tensioning device as required by the process.
-roll bridle roll set -diameter tension roll control

26/07/2026

1600-type film laminating and slitting line, shearing materials: 304 SS and 403 SS; thickness: 0.3~3.0mm, width: 500~1600mm; coil inner diameter: 508mm or 610mm, coil outer diameter: ≤2000mm.
Finished products: Minimum slitting width is 40mm, slitting quantity: 30 strips of thickness ≤0.5mm, 20 strips of thickness 1.0mm, 12 strips of thickness 2.0mm, 6 strips of thickness 3.0mm. Line speed: 250m/min. Each coil weighs ≤25t, the production output is monthly of 8000~10000t.
It consists of uncoiler (with paper collector), leveler, slitter, film laminating machine, recoiler and etc, and the electrical PLC control system.
It features high shear precision, precise slitting size, high production efficiency, online film laminating, shear's knife quick adjustment, HMI touch screen control and so on. It is used for stainless steel sheets production for elevators, household appliances, kitchenware, architectural decoration, food and medical, chemical equipment and precision manufacturing with high requirements.
line of stainless steel laminating line Line

24/07/2026

Hot load test of a pickling line is a critical stage of the commissioning. It marks the line steps to the practical production operation from no load test, dry threading, and wet threading, where mechanical, electrical, process, and automation systems undergo test comprehensively. Successful production of the first qualified coil during the hot load test signifies that the line is put into operation successfully.

18/07/2026

Type 1300 push-pull pickling line of Pakistani Hadeed was built by L-kewei in 2019.
Strip material: carbon steel and low alloy steel, representing grades SPCC, SPCD, ST12, 08Al, Q195, etc., size 1.8~4.0×1350mm, coil inner diameter 610/760mm, outer diameter max 2000mm, weight max 26t, line speed max 80mmin, output 310,000 tons/Annual.
The shallow turbulent pickling process is adopted, the pickling section is divided into three tanks, each with a separate external heating and acid circulation system; the best pickling effect is obtained by adjusting the temperature of each tank; with high acid circulation efficiency, low acid consumption and thermal consumption.
-pull pickling line pickling and trimming turbulent pickling

16/07/2026

Strip threading with water in the tanks, also called as water filled integral test, is a critical commissioning procedure following dry threading.
Different from dry threading, which only verifies the physical path of the strip, it introduces "fluid variables" by using clean water to replace highly hazardous acid to examine the entire process media system deeply in a "zero-acid " environment.
Filling the tanks with water enables the operator to simulate the static pressure during production, check the pipeline flanges, pump seals, and tank welds for any leakage, exam and run the automation control logic, thereby eliminating all the potential obstacles for the subsequent hot test.
line commissioning threading with water in tanks Line integrated Commissioning

12/07/2026

Type 1350 push-pull pickling line of Zhejiang Fuchunjiang Group was built by L-kewei in 2009 with EPC.
Strip material: carbon steel and low alloy steel, size 1.8~4.0×1350mm, coil inner diameter 610/760mm, outer diameter max 2150mm, weight max 26t, line speed max 120mmin, output 400,000 tons/Annual.
-pull pickling line pickling and trimming turbulent pickling

10/07/2026

After full installation of the pickling line equipment, single-machine commissioning shall be carried out. Upon successful single-unit commissioning, full-line linkage commissioning follows, starting with dry strip threading, which is a key operation demanding precise coordination between personnel and equipment.
Dry strip threading describes the operation of feeding steel strip through all equipment, rollers and tanks when pickling tanks hold no acid liquid. Its core purpose is to commission and inspect continuous strip operation in preparation for subsequent acid circulation startup. Conducting this operation under zero-acid conditions eliminates acid splashing hazards, protects equipment against abrasion damage during low-speed operation, and avoids scrapping strips that suffer over-pickling from prolonged repeated stagnation during adjustments. Dry strip threading shall be implemented prior to activating the acid circulation system to guarantee process safety.
line commissioning strip threading of pickling line line integrated commissioning

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Longanganghuicheng B-24, Minyuan Road 38#, East Lake High-Tech Dev. Zone
Wuhan

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+8618971306750

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